Turning now to the disturbing case of air rage, making headlines tonight, the passenger accused of hitting the little boy sitting beside him on his mother's lap. This alleged case just one in a series of stunning melddowns. Tonight gio benitez with new details from the fbi. And what this passenger under fire is planning next. Reporter: When jessica bennett and her 19-month-old adopted son jonah boarded a flight from minneapolis to atlanta just days ago, she never expected to tell this violent story. He came at him like that. It came down that way at jonah's eye right here. Reporter: Jessica and fbi investigators say another passenger, 60-year-old joe hundley assaulted her little boy. When jonah started to cry, hundley reportedly told mom, shut the n-word baby up. And I said, what did you just say? And he was so drunk that he fell onto my face and his mouth moved over to my ear. Reporter: Then she says, hundley slapped the child. When I look at jonah's face, his eye was swollen here and it was bleeding. Reporter: Authorities say cases of air rage are up about 30%. Earlier this year, a passenger was so drunk and unruly, he was bound with duct tape by fellow passengers. And those memorable outbursts from flight attendants seemingly fed up. But air rage incidents involving children, almost unheard of. Tonight, jonah's dad has a message for hundley. I hope he's embarrassed. I hope he feels ashamed. The fbi telling us tonight, hundley is execed to turn himself in to face that assault charge. Hundley's attorney says she shouldn't rush to judgement, he plans to plead not guilty.

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